| Parameters | 
                                    
                                                                                                                        
                                                | Mfr | 
                                                Diodes Incorporated | 
                                            
                                                                                    
                                                | Series | 
                                                - | 
                                            
                                                                                    
                                                | Package | 
                                                Tape & Reel (TR) | 
                                            
                                                                                    
                                                | Product Status | 
                                                Obsolete | 
                                            
                                                                                    
                                                | Output Type | 
                                                Transistor Driver | 
                                            
                                                                                    
                                                | Function | 
                                                Step-Down | 
                                            
                                                                                    
                                                | Output Configuration | 
                                                Positive | 
                                            
                                                                                    
                                                | Topology | 
                                                Buck | 
                                            
                                                                                    
                                                | Number of Outputs | 
                                                2 | 
                                            
                                                                                    
                                                | Output Phases | 
                                                2 | 
                                            
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 
                                                4.5V ~ 13.2V | 
                                            
                                                                                    
                                                | Frequency - Switching | 
                                                200kHz ~ 500kHz | 
                                            
                                                                                    
                                                | Duty Cycle (Max) | 
                                                40% | 
                                            
                                                                                    
                                                | Synchronous Rectifier | 
                                                Yes | 
                                            
                                                                                    
                                                | Clock Sync | 
                                                No | 
                                            
                                                                                    
                                                | Serial Interfaces | 
                                                PSI | 
                                            
                                                                                    
                                                | Control Features | 
                                                Enable, Frequency Control, Phase Control, Power Good | 
                                            
                                                                                    
                                                | Operating Temperature | 
                                                -40°C ~ 85°C (TA) | 
                                            
                                                                                    
                                                | Mounting Type | 
                                                Surface Mount | 
                                            
                                                                                    
                                                | Package / Case | 
                                                24-VFQFN Exposed Pad | 
                                            
                                                                                    
                                                | Supplier Device Package | 
                                                U-QFN4040-24 | 
                                            
                                                                                    
                                                | Base Product Number | 
                                                AP3598 | 
                                            
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 
                                                1  (Unlimited) | 
                                            
                                                                                    
                                                | REACH Status | 
                                                REACH Unaffected | 
                                            
                                                                                    
                                                | ECCN | 
                                                OBSOLETE | 
                                            
                                                                                    
                                                | HTSUS | 
                                                0000.00.0000 | 
                                            
                                                                                    
                                                | Standard Package | 
                                                1,000 | 
                                            
                                                                                                                
                                
                             
                                                Buck Regulator Positive Output Step-Down PSI DC-DC Controller IC U-QFN4040-24